Comparative Efficiency of Intracervical and Intra-Uterine Methods of Insemination in Dairy Cattle
Open Access
- 1 March 1951
- journal article
- research article
- Published by American Dairy Science Association in Journal of Dairy Science
- Vol. 34 (3) , 195-198
- https://doi.org/10.3168/jds.s0022-0302(51)91693-1
Abstract
1053 intracervical inseminations were made with 48.1% non-returns in 150 days. 1311 intra-uterine inseminations resulted in 56.1% non-returns. This difference of 8% was highly significant (P < 0.01). Considering only first service the difference of 5% in favor of intra-uterine was not significant. When the data were analyzed according to age of semen there was no significant difference with semen less than 12 hrs. old, but with semen 24-36 hrs. old the intra-uterine method showed an increase of 13.1% over intracervical, (p < 0.01).This publication has 0 references indexed in Scilit: